Passing auto properties as ref
The C# compiler doesn't allow this. What's the reason for this? And what workaround I can use? Basically I need to swap some values around, but don't wanna have the same swapping code all over. ...
.net
Snippet Designer for Visual studios 2008?
Hi I am using Visual Studios 2008 Express so I am wondering if there is a 3rd party standalone app that I can use to make my C# snippets fast and easy(gui interface) and then somehow upload it into my VS2008. I am not sure what snippets are held in but I want to keep backups of them. I am not sure if Visual Studios has an import snippe...
how to design Repository pattern to be easy switch to another ORM later?
I am new to repository pattern but i tried, my goal is to make a design which will let me easily with just some few edits "dependency injection, or configuration edits" to be able to switch to another ORM without touching other solution layers. I reached this implementation: and here is the code: public interface IRepository<T> { T ...
.NET Why can't I override my web.config mailSettings?
Usually my application sends email with a generic system address. But in some cases I want to instead send as the logged in user. web.config: <?xml version="1.0"?> <configuration> ... <appSettings> ... <add key="DefaultEmailAddress" value="[email protected]" /> </appSettings> <system.net>...
Linq Aggregate complex types into a string.
I've seen the simple example of the .net Aggregate function working like so: string[] words = { "one", "two", "three" }; var res = words.Aggregate((current, next) => current + ", " + next); Console.WriteLine(res); How could the 'Aggregate' function be used if you wish to aggregate more complex types? For example: a class with 2 proper...
storing user info/pass in web.config authentication
Hello, I am trying to write a simple internal app with some simple authentication. I'm also trying to make this quick and learn about the forms authentication via web.config. So i have my authentication working if I hard code my 'user name' and 'password' into C# code and do a simple conditional. However, I'm having a tough time stori...
How to provide a fallback assembly instead of the one that can't be loaded?
At runtime, if a referenced assembly fails to load with e.g. "Strong name validation failed" (because it's test-signed), is there a way to provide a substitution assembly from another path that is real-signed? I tried subscribing to AppDomain.CurrentDomain.AssemblyResolve, but it doesn't get fired, because the "bad" assembly technically...
How does .NET allow API exploration of compiled DLLs?
The title says it all... ...
Thread safety of UuidCreateSequential and p/invoke calls in general
I am working with a system that uses GUIDs as keys in most database tables. The guids are created using UuidCreateSequential, in order to be nice to the database indexes. C++ syntax, according to http://msdn.microsoft.com/en-us/library/aa379322%28VS.85%29.aspx : RPC_STATUS RPC_ENTRY UuidCreateSequential( UUID __RPC_FAR *Uuid ); p...
How is a securestring marshalled to unmanaged code?
What prompted this question: I'm trying to change the account under which a windows service runs. I decided to use the win32 api rather than WMI and started looking at ChangeServiceConfig. I thought I could simply use the SecureString type in the unmanaged method signature and it would work fine. Hmmm, not quite. This made me wonder,...
How to add an application to startup using installer?
Hi, I am making an installer using "setup" project in VS2005. I want the project output - application.exe to be added to startup by modifying this registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. How can I do in the setup project.Thanks ...
Is the directorysearcher object capped at 5000 even if pagesize is set to greater
Is the directorysearcher findall results method capped at 5000 results even if pagesize is set to greater. It really seems to be, because no matter what I get exactly 5000 results. This is C# ...
How can I tell my application window is the foreground window
I have the following problem: I want to be able to tell if my application window is the foreground window in Windows. I am using C#, .Net Framework 3.5 on Windows XP. I actually can think of two ways to do what I am after Use pinvoke, GetForeGroundWindow and compare the returned hWnd to the hWnd of my form Check if Form.ActiveForm is ...
How to do a cloud effect in WPF?
I can do a nice cloud effect in flash. I want to do the same in .net 3.5 WPF in C# code. Can you show me how to do it? ...
Best syntax to create multi-line string
Hi! What's the best way to create multi-line string in C#? I know the following methods: Using StringBuilder var result = new StringBuilder().AppendLine("one").AppenLine("two").ToString() looks too verbose. Using @ var result = @"one two" looks ugly and badly formatted. Do you know better ways? ...
C# List<double> size vs double[] size
So I just was testing the CLR Profiler from microsoft, and I did a little program that created a List with 1,000,000 doubles in it. I checked the heap, and turns out the List<> size was around 124KB (I don't remember exactly, but it was around that). This really rocked my world, how could it be 124KB if it had 1 million doubles in it? An...
The .NET equivalent of static libraries?
I'm building a tool in managed code (mostly C++/CLI) in two versions, a 'normal user' version and a 'pro' version. The fact that the core code is identical between the two versions has caused me a little trouble as I want to package the resulting tool as a single assembly (DLL) and I don't want to have to include the .cpp files for the...
Why does this polymorphic C# code print what it does?
I was recently given the following piece of code as a sort-of puzzle to help understand Polymorphism and Inheritance in OOP - C#. // No compiling! public class A { public virtual string GetName() { return "A"; } } public class B:A { public override string GetName() { return "B"; } } ...
How to run .NET exe using cron job on cloud server
Has anyone run an exe using cron job? I want to run an exe at scheduled intervals on a cloud server. The scheduled exe is created using .NET. The cloud server has facility of running Cron jobs using ruby, php, perl, python and http I do not have much knowledge of what a cron job is. What would be the best way of scheduling the EXE? It...
What's the main problem of Windows-porting Banshee?
Is it specific to the Banshee project or to the Mono platform as a whole? ...